Quartus

Illegal frequency <number> MHz for INPUT_FREQUENCY parameter for Clocklock PLL <name> -- frequency must be between <number> and <number> MHz

CAUSE: You used the MegaWizard Plug-In Manager to specify an input frequency for the specified ClockLock PLL. However, the input frequency specified exceeds the maximum frequency allowed for a Clocklock PLL for the ACEX 1K or FLEX 10KE device families. For -2 speed grade ACEX II and FLEX 10KE devices, the maximum input frequency allowed for a Clocklock PLL when the clock multiplication factor is 1 and 2 is 70 MHz and 37.5 MHz, respectively.
ACTION: Reduce the input frequency for the PLL.

See also:

Overview: Using the MegaWizard Plug-In Manager

- PLDWorld -

 
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